Starlink Local Device API
SpaceX's officially supported local gRPC API on Starlink hardware, defined in protobuf and published verbatim on GitHub as device.proto. The SpaceX.API.Device service exposes a single Handle RPC carrying a GetDiagnostics request, answered by WifiGetDiagnosticsResponse or DishGetDiagnosticsResponse. The WiFi router serves it on 192.168.1.1 port 9000 and the user terminal on 192.168.100.1 port 9200. There is no authentication because it is reachable only on the local network.